JPS63224445A - Self-routing speech path - Google Patents

Abstract

PURPOSE:To reduce a hardware quantity for the control of a speech path, by combining a circuit which performs a copying operation by using a random readout type memory circuit and a non-block self-routing speech path which selects a path. CONSTITUTION:By constituting a buffer circuit 201 of the random readout memory circuit, the data part of a bit of communication information A is read out by copying for several times, and furthermore, a header part including different differential addresses is read out from the memory 202, and by inputting the data part and the header part in a form that they are synthesized to a self-routing speech path via a transmission line 219, the bit of communication information can be copied, and is distributed with the said speech path. Since non-blocking property can be guaranteed completely in the speech path, no collision between data occurs. A control circuit 208 recognizes the arrival interval of the communication information in advance at the time of setting a call, and controls the copying operation so as to be completed within the arrival interval. In such a way, it is possible to constitute a perfect non-block type self-routing speech path large in scale and having a copying function.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to self-routing/routing channels for exchanging information.

[Conventional technology]

FIG. 3 is an example of a self-routing channel with a conventional copy function. For details, please refer to GLOBECQM B4'r
5rhnx, zrg: A wrwBMn DIar
rAr, 5WITCH” 5.5.1. Regarding this operation, please refer to Foreign Communication Technology August 1986 issue N.
o, pp. 117.24-31, Configuration of Broadband Synchronous Network with Large Capacity Line Setting Terminals (Hub Terminals), Published by Telecommunications Association of Japan, Edited by NTT Technology Development Department.

In this configuration, a routing network for copying and a copying network are arranged before a routing network that performs routing, and as shown in the figure, packets are divided into an original packet of the signal source and a copy packet without information (1). It has a copy bit that distinguishes it. The original packet has a destination address and a signal source address, and the copy packet has the address of the signal source to be copied as the original address. The copy sorting network sets the copy bit to the signal source address by LSB.
, and the ordering is performed so that they are arranged in descending order of order value. The copy packet is divided into adjacent packets to the original packet and sent to the copy network.

In the copy network, contents are successively copied to copy packets adjacent to the original packet.

[Problem that the invention seeks to solve]

The conventional configuration of a self-routing communication path with a copying function has the problem that a copy tracing network and a copying network are required at the ninth stage of copying, resulting in a large hard cover.

[Ninth way to solve the problem]

The present invention aims to solve all the conventional problems and provide a self-routing communication path with a small amount of hardware.
consisting of multiple stages and multiple transmission links connecting each stage,
At each stage, the link to the next stage is determined by the header added to the communication information, and this header includes the difference between the incoming line number and the outgoing line number, and at each stage, the position of the information is moved according to this header. Alternatively, in a self-routing communication path that transfers the communication information to the next stage without moving, a first circuit that temporarily stores the communication information, a second circuit that stores the header, and a
a third circuit for synthesizing the output communication information from the circuit and the header from the second circuit; and after inputting the output from the third circuit to the self-routing channel and performing the required routing. , a fourth circuit that temporarily stores the communication information, a fifth circuit that stores the new header, and deletes the old header from the communication information from the fourth circuit and combines the new header and the communication information. In particular, the first circuit is a memory circuit of a random readout type, reads out the same communication information N times, and sends the same communication information to the second circuit for each piece of information. The present invention is characterized in that N headers having different differences between the stored incoming line number and outgoing line number are read out and combined in the third circuit.

[Effect]

The present invention provides a copy function and a non-blocking method by using a random read type storage circuit and combining the copying operation with a row 9 circuit and a non-blocking self-routing channel that selects a route. Since a self-routing/routing communication path can be realized, a feature of the present invention is that the complicated copy routing network that was conventionally required, as well as the amount of shihad that does not require a copy network, is reduced. Examples will be described below based on the drawings.

〔Example〕

FIG. 1 shows the overall configuration of an embodiment of the present invention.
01 is a buffer circuit that temporarily stores communication information (an example of a first circuit), 202 is a storage circuit that stores headers, etc. (an example of a second circuit), and 205 is a circuit that synthesizes the communication information and the header. (an example of the third circuit), 204 is a self-routing communication path using the differential addressing method (patent pending, Japanese Patent Application No. 61-285621, Japanese Patent Application Laid-open No. 1988-1181), and 205 is a 2777 circuit for temporarily storing communication information (No. 206 is a memory circuit (206) for temporarily storing new headers.
207 is an example of a sixth circuit, 20B is a control circuit, 210 is a communication information input line, 211 is a branch circuit, 212 is a synthesis circuit that replaces the old header with a new header (an example of the fifth circuit), 207 is a synthesis circuit that replaces the old header with a new header (an example of the sixth circuit) A line for transmitting the data part of the communication information; 213 is a line for transmitting the logical channel number of the communication information; 214 is a line for writing the differential address from the control circuit;
215 is a write control line, 216 is a data read control line from the buffer, 217 is a data section transmission line, 218
219 is a line for transmitting headers such as differential addresses, and 219 is a line for transmitting multiplexed communication information to the self-routing circuit 204 using the differential addressing method. 220 is an input line for communication information from a self-routing channel; 221 is a branch circuit;
22 is a transmission line for the data part of the communication information, 223 is 8% of the communication information that conveys the logical channel number, 224 is a line for writing a header from the control circuit, 225 is a write control line, and 226 is data from the buffer. A read control line, 227 is a data section transmission line, 228 is a new header transmission line, and 229 is an output line. The broken lines in the figure indicate the units to be added.

The operation of FIG. 1 will be explained using the operation example of FIG. 2. FIG. 2 (An) shows the arrangement of communication information A to D on the input line 210, each communication information consists of data parts DA to DD and a header @ HA% HD, and in the branch circuit 211, the data part and the header part FIG. 2(A) shows a data part transmitted to the buffer circuit 201 via a transmission line 212, and (1) shows a header part transmitted to the memory circuit 202 via a line 213 that conveys a logical channel number. By reading out the new header section from the storage circuit 202 as in (1) and reading out the data section at the timing of (1), the new header section is transmitted to the synthesis circuit 203 via the transmission lines 217 and 218, respectively. , self-routing channel 204
The force is transmitted through the transmission line 219t in an arrangement such as (force). Branch circuit 2 after passing through the self-routing channel
21. The operations of the buffer 1 circuit 205, the memory circuit 206, and the synthesis circuit 207 are also similar to those shown in FIG. Figure 2 (K)
, (ri) show the characteristic operation of the present invention, in which the data portion of the communication information A is written as shown in (k) by configuring the variable circuit 201 with a random readout type memory circuit. By copying and reading multiple times, and then reading from 202 at the timing of the header 't ct) that includes different differential addresses, the data section and header section are combined as shown in 202 and transferred to the transmission line 219. By entering the self-routing channel via 'z, the communication information is copied and distributed on the channel. As described in detail in Japanese Patent Application No. Sho 61-285621, this communication path is completely non-blocking, so data collisions do not occur. The control circuit 208 knows the arrival interval of communication information in advance at the time of call setup, and controls the copying operation to be completed within the arrival interval.

Therefore, the number of copies is also determined by the relationship between the arrival interval and the read cycle of the random access memory.

〔Effect of the invention〕

As explained above, in the present invention, the storage circuit for converting headers such as differential addresses and the storage circuit for data can also be used as a copying circuit, thereby eliminating the need for a dedicated and complex sorting network for copying, which was previously required. Furthermore, a copy network is no longer required, and the amount of hardware for controlling the communication path is reduced.
By combining this method with the self-routing channel of the publication, a large-scale completely non-blocking self-routing channel with a copy function can be constructed.

[Brief explanation of drawings]

FIG. 1 shows the overall configuration of an embodiment of the present invention, FIG. 2 is an operational diagram for explaining the operation of FIG. 1, and FIG. 3 shows an example of the configuration of a conventional self-routing channel having a copy function. 201: Buffer 7 circuit that temporarily stores communication information 202:
Memory circuit 203 for storing headers etc.: Circuit 204 for synthesizing the communication information and the header:
Self-routine communication path 205 using differential addressing method: Buffer circuit 206 for temporarily storing communication information:
Memory circuit 207 for temporarily storing new headers: Synthesizing circuit 208 for replacing old headers with new headers: Control circuit 210; Input line 211 for communication information; Branch circuit 212; Line 213 for transmitting the data part of communication information:
Line 214 that conveys the logical channel number among communication information: Line 215 that writes the differential address from the control circuit
:Write control line 216:Data read control line 217 from buffer 7:
Data section transmission line 218: Header transmission line 219 for differential addresses, etc.: Line for transmitting multiplexed communication information to t-204 220: Input line 221 for communication information from self-routing communication path: Branch circuit 222: Communication Among the information, a transmission line 225 for the data section: A line for transmitting the logical channel number among the communication information 224: A line for writing a new header from the control circuit 225: An alarm control line 226: A control line for reading data from buffer 1 227 :
Data section transmission line 228: New header transmission line 229: Output line Patent author: Nippon Telegraph and Telephone Corporation Patent Attorney Gobe Tamamushi (2 others) 210: Communication information input line 2
11: Branch circuit 2! 2: Overconfidence 'chi 9 out of 1 report
* 2 + 3 + Of the communication information, the logical child also (line 21 that trusts No. 1, 1 minute address, etc.) 219, multiplexed communication information to 204, corner line 220, self Input line for OIM information from Routines communication path 221 Branch path 2
22 + Transfer of 95 de-19 copies of Tsushin 111 Report
2z3゛ Communication 111'ra's) 5 theory ← Tei No. 1 and transmission λ4 224: Control circuit I) Line 7g2 to write to # 225. Writing [11 line 226 Data read from buffer 1lIrn line 227:
Data section Ien encounter line 228: Zan header Den 1 gland
229゛ Output line Implementation of the present invention metal body aF5. Figure 1. Self-routing channel with conventional copy function. Figure 3.

Claims (2)

[Claims] (1) Consisting of multiple stages and multiple transmission links connecting each stage, each stage determines the link to the next stage based on the header added to the communication information, and the header contains the incoming line number and outgoing line number. In a self-routing communication path that includes a difference, and in each stage moves the position of the information according to the header, or transfers the information to the next stage without moving, a first circuit that temporarily stores the communication information, and a first circuit that temporarily stores the communication information; a second circuit for storing the output communication information from the first circuit and a header from the second circuit; and a third circuit for combining the output communication information from the first circuit with the header from the second circuit; After inputting to the communication path and performing necessary routing, the first circuit temporarily stores the communication information, the fifth circuit stores the new header, and the old header is retrieved from the communication information from the fourth circuit. Delete and
A self-routing channel comprising: a sixth circuit for synthesizing the new header and communication information. (2) The first circuit consists of a random readout type memory circuit, reads the same communication information N times, and calculates the difference between the incoming line number and the outgoing line number stored in the second circuit for each piece of information. 2. A self-routing telephone line as claimed in claim 1, wherein N different headers are read and synthesized by said third circuit.